Equation restoration (Small)

A publisher put together an arithmetic drill book for the lower grades of elementary school for the 2012 school year. The book holds a lot of problems, so it was popular among parents who push their children hard. A rival publisher got jealous, reached the manuscript right before printing, and erased digits from the problems at random. Find the erased digits so the book can still be printed.

• An equation has the form number operator number = number.
• The operator is addition + or subtraction -.
• Every number is a non-negative integer, and no positive integer starts with 0. A number of two or more digits therefore never begins with 0.
• Each erased digit is written as ?.
• Exactly one space separates a number from the operator and from =, and the equation has no space at its start or end.
• The equation existed before its digits were erased, so every equation has at least one restoration.

The first line contains the number of test cases $T$. Each of the next $T$ lines contains one equation in which some digits have been erased to ?.

Constraints

• $1 \le T \le 100$
• The length of an equation is at least $1$ and at most $20$.

For each test case, print one line in the form Case #x: y, where $x$ is the test case number starting from 1 and $y$ is the restored equation.

When several restorations are possible, read the whole equation as one string and print the smallest one in lexicographic order. For example, 1? - ? = 3 can be restored to 10 - 7 = 3, 11 - 8 = 3 or 12 - 9 = 3, and the smallest of the three is 10 - 7 = 3.